Results 71 to 80 of about 1,852 (142)

Bifurcation and pattern dynamics in the nutrient-plankton network

open access: yesMathematical Biosciences and Engineering, 2023
This paper used a Holling-IV nutrient-plankton model with a network to describe algae's spatial and temporal distribution and variation in a specific sea area.
Wenjie Yang   +3 more
doaj   +1 more source

Chapman-Enskog method and synchronization of globally coupled oscillators

open access: yes, 2000
The Chapman-Enskog method of kinetic theory is applied to two problems of synchronization of globally coupled phase oscillators. First, a modified Kuramoto model is obtained in the limit of small inertia from a more general model which includes ...
A. B. Poore   +19 more
core   +1 more source

Bifurcation in a Leslie–Gower system with fear in predators and strong Allee effect in prey

open access: yesNonlinear Analysis
In this paper, we consider a modified Leslie–Gower predator–prey model with Allee effect on prey and fear effect on predators. Results show complex dynamical behaviors in the model with these factors.
Ranchao Wu, Wenkai Xiong
doaj   +1 more source

Bogdanov-Takens and Triple Zero Bifurcations of a Delayed Modified Leslie-Gower Predator Prey System

open access: yesAbstract and Applied Analysis, 2013
A delayed modified Leslie-Gower predator prey system with nonlinear harvesting is considered. The existence conditions that an equilibrium is Bogdanov-Takens (BT) or triple zero singularity of the system are given. By using the center manifold reduction,
Xia Liu, Jinling Wang
doaj   +1 more source

Chaotic dynamics of the Bianchi IX universe in Gauss-Bonnet gravity

open access: yes, 2013
We investigate the dynamics of closed FRW universe and anisotropic Bianchi type-IX universe characterized by two scale factors in a gravity theory including a higher curvature (Gauss-Bonnet) term.
Kawai, Shinsuke, Kim, Edward J.
core   +1 more source

Bifurcation analysis of a normal form for excitable media: Are stable dynamical alternans on a ring possible?

open access: yes, 2008
We present a bifurcation analysis of a normal form for travelling waves in one-dimensional excitable media. The normal form which has been recently proposed on phenomenological grounds is given in form of a differential delay equation.
Georg A. Gottwald   +5 more
core   +1 more source

Dynamical analysis of a toxin-producing phytoplankton-zooplankton model with refuge

open access: yesMathematical Biosciences and Engineering, 2017
To study the impacts of toxin produced by phytoplankton and refuges provided for phytoplankton on phytoplankton-zooplankton interactions in lakes, we establish a simple phytoplankton-zooplankton system with Holling type Ⅱ response function. The existence
Juan Li   +3 more
doaj   +1 more source

Bifurcation analysis of a model of the budding yeast cell cycle

open access: yes, 2004
We study the bifurcations of a set of nine nonlinear ordinary differential equations that describe the regulation of the cyclin-dependent kinase that triggers DNA synthesis and mitosis in the budding yeast, Saccharomyces cerevisiae.
Battogtokh, Dorjsuren, Tyson, John J.
core   +1 more source

Canard explosion in delayed equations with multiple timescales [PDF]

open access: yes, 2014
We analyze canard explosions in delayed differential equations with a one-dimensional slow manifold. This study is applied to explore the dynamics of the van der Pol slow-fast system with delayed self-coupling.
Krupa, Maciej, Touboul, Jonathan D.
core  

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